LCD Gauge System - Tell Me About Your Car!

Hello Everyone,

You may have already bumped into my intro thread regarding LCD gauges.
Instead of spamming multiple forums, I'll provide the link to the original thread:

I'd like to learn more about your builds and which major electronics and
electrical components that are typically used.

For example:
- HVAC unit
- Dash board Gauges
- Rear view/backup cameras
- TPMS, park assist
- Data loggers, tuners
- Engine preference

Anything you can list in addition would be appreciated. I'd like to help design
my system for this particular audience and offer solutions for typical problems.

Thank you!